Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 616, Issue -, Pages 235-242Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2014.07.099
Keywords
Alloy; Cold deformation; Corrosion behavior; Texture; EBSD
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Funding
- Canadian National Science and Engineering Research Council (NSERC)
- National High Technology Research and Development Program of China (863 Program) [2013AA031005]
- China Scholarship Council (CSC)
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Ni-Fe-Cr alloy 028 (a nickel based super alloy also known as UNS N08028) was subjected to different degree of cold deformation by laboratory rolling to investigate the influence of microstructure on corrosion behavior under two simulated environments, (0.5 M NaCl and 1 M H2SO4). Experimental results showed that texture had influence on the corrosion rate of this alloy. The corrosion rate under both environments significantly decreased with increase in the ND//< 1 1 0 > orientation. Significant differences in the corrosion rate with increased degree of deformation were mainly related to different amount of the CSL (coincident site lattice) Sigma 3 boundaries in the ND//< 1 1 0 > oriented grains. The present study contributes to discussion on the CSL boundary formation for improved corrosion resistance. (C) 2014 Elsevier B.V. All rights reserved.
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